Google broke YouTube for Windows Phone.
Not just the app, but also the browser.
Also, in my experience the Windows Phone hardware was dodgy. The first one I bought was a Dell and failed under warranty…and the replacement failed out of warranty. Then after an LG Android, I bought one of the last Lumia’s. The camera failed just out of warranty. Then the whole thing failed while I was traveling.
So I bought an iPhone.
I had a great run with the Lumia range devices but I could see it vary wildly depending on designer/manufacturers.
I end up on Android simply because of file drag and drop and an open App ecosystem which they are now trying to lock down.